Call me low budget, but I work on feature films & post on doc's. I use a MacPro with a Sonnet E4p and (2) SansDigital 8 bay raid cabinets from Other World Computing. I stripe 4 together.

Now I would assume a $1300 cabinet compared to a $300 cabinet should be nicer, and perhaps more reliable... but these RAIDS are always a little touchy to get the speeds anyway. (Use backups!) I get 200/mbs with a (4) 1tb disc RAID 0, done in the Disk Utility of OS X.

I have replaced one in 3 years as a board burned out. But, it's still cheap.

I would look into the Seagra Technology, Inc Desktop 5 Bay RAID 3,5 Storage Array. STSRFC4-X is the product. They also have FC4 HBA which is STF400PE product. Please take a look at it. Very price competitive and high performance product. They have 100+ system out and very reliable. Support is great.

They provide with the Complete Solution which means HBA and Storage. You cannot just get external enclosure only which means without drives.